From f70babdcf4b4522de0342b440bbc4c7cab7522da Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Sat, 22 Apr 2023 19:12:48 -0400
Subject: [PATCH] Get tracing back into the latex environemtn end parser.

---
 src/parser/latex_environment.rs | 31 ++++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/src/parser/latex_environment.rs b/src/parser/latex_environment.rs
index 78d02099..a1353f7d 100644
--- a/src/parser/latex_environment.rs
+++ b/src/parser/latex_environment.rs
@@ -60,16 +60,25 @@ fn latex_environment_end(
 ) -> impl for<'r, 's> Fn(Context<'r, 's>, &'s str) -> Res<&'s str, &'s str> {
     let current_name_lower = current_name.to_lowercase();
     move |context: Context, input: &str| {
-        start_of_line(context, input)?;
-        let (remaining, _leading_whitespace) = space0(input)?;
-        let (remaining, (_begin, _name, _close_brace, _ws, _line_ending)) = tuple((
-            tag_no_case(r#"\end{"#),
-            tag_no_case(current_name_lower.as_str()),
-            tag("}"),
-            space0,
-            alt((eof, line_ending)),
-        ))(remaining)?;
-        let source = get_consumed(input, remaining);
-        Ok((remaining, source))
+        _latex_environment_end(context, input, current_name_lower.as_str())
     }
 }
+
+#[tracing::instrument(ret, level = "debug")]
+fn _latex_environment_end<'r, 's, 'x>(
+    context: Context<'r, 's>,
+    input: &'s str,
+    current_name_lower: &'x str,
+) -> Res<&'s str, &'s str> {
+    start_of_line(context, input)?;
+    let (remaining, _leading_whitespace) = space0(input)?;
+    let (remaining, (_begin, _name, _close_brace, _ws, _line_ending)) = tuple((
+        tag_no_case(r#"\end{"#),
+        tag_no_case(current_name_lower),
+        tag("}"),
+        space0,
+        alt((eof, line_ending)),
+    ))(remaining)?;
+    let source = get_consumed(input, remaining);
+    Ok((remaining, source))
+}